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May 27, 2015 12:05
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hbase shell backup script
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@s3 = "s3a://XXXX:XXXX@BUCKET/" | |
@libjars = `ls /opt/hbase/lib/*.jar | tr "\n" ","` | |
@ignore = [ /zipkin\..*/i, /.*_temp/i, /.*tmp/i, /test_.*/i, /.*_test/i, /.*_old/i ] | |
@mappers = "6" | |
include Java | |
java_import org.apache.hadoop.hbase.HBaseConfiguration | |
java_import org.apache.hadoop.hbase.client.HBaseAdmin | |
java_import org.apache.hadoop.hbase.snapshot.ExportSnapshot | |
java_import org.apache.hadoop.util.ToolRunner | |
@conf = org.apache.hadoop.hbase.HBaseConfiguration.create | |
@admin = org.apache.hadoop.hbase.client.HBaseAdmin.new(@conf) | |
def cleanup() | |
old_snapshots = @admin.listSnapshots(".*-S3BACKUP-.*").to_a | |
old_snapshots.each { |s| | |
puts "-----> Cleaning up old snapshot " + s.name | |
@admin.deleteSnapshot(s.name.to_java_bytes) | |
} | |
end | |
def tables_to_backup() | |
to_backup = Array.new | |
tables = @admin.listTables(".*").to_a | |
tables.each { |s| | |
tn = s.getTableName().getNameAsString().to_s | |
backup = true | |
@ignore.each { |i| | |
if i.match(tn) | |
backup = false | |
end | |
} | |
if backup | |
to_backup << tn | |
end | |
} | |
to_backup | |
end | |
def backup(table) | |
snapshot_name = table + "-S3BACKUP-" + Time.now.strftime("%Y%m%d_%H%M%S") | |
puts "-----> Creating snapshot " + snapshot_name | |
@admin.snapshot(snapshot_name.to_java_bytes, table.to_java_bytes) | |
puts "-----> Export snapshot " + snapshot_name | |
@es = org.apache.hadoop.hbase.snapshot.ExportSnapshot.new | |
args = ["--libjars", @libjars, "-snapshot", snapshot_name, "-copy-to", @s3, "-mappers", @mappers] | |
java_args = args.to_java :String | |
ToolRunner.run(@conf, @es, java_args) | |
puts "-----> Deleting snapshot " + snapshot_name | |
@admin.deleteSnapshot(snapshot_name.to_java_bytes) | |
end | |
cleanup() | |
tables = tables_to_backup() | |
puts "-----> Tables to backup" | |
puts tables | |
puts "-----> Starting backup" | |
tables.each { |t| | |
backup(t) | |
} | |
puts "-----> Tada" | |
exit 0 |
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hbase shell backup.rb